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3 years ago

What is 73,489 in expanded form

Mathematics

2 answers:

aliina [53]3 years ago

6 0

70,000+3,000+400+80+9

Thanks! :)

Ivenika [448]3 years ago

4 0

Answer:

To write the expanded form of : 73,489.

Expanded Number Notation: To write a number is to show the value of each digit.

As a sum of each digit multiplied by its matching place value ( i.e, ones, tens, hundreds, thousands etc.)

Then, the expanded form of number 73,489;

$73,489 = (7\times 10000)+(3 \times 1000)+(4 \times 100)+(8 \times 10) + (9 \times 1)$

= $70,000+3000+400+80+9$

Therefore, the expanded form of number

73,489= $70,000+3000+400+80+9$

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Which statement is true ?

Paul [167]

Answer:

the graph of w passe through point (8,-6)

Step-by-step explanation:

When you draw a line through points (-5, 7) and (3, -1) points (8,-6) also meets the line segment at the very bottom.

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2 years ago

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A circle has a circumference of 28π centimeters. In terms of π, what is the area of the circle to the nearest square centimeter?

Vadim26 [7]

Hi there!

The formula to find the are of a circle is :

a = $\pi$ r²

The formula to find the circumference of a circle is :

c = 2 $\pi$ r

In order to use the area formula, you need to figure out what the radius (r) is.

If we solve for "r" in the circumference equation, we have :

r = c ÷ (2 $\pi$ )

Now we use this to replace "r" in the area formula :

a = $\pi$ ( c ÷ (2 $\pi$ ))²

When we simplify this we get :

a = c² ÷ 4 $\pi$

Now you can put your value of "c" into this equation and find "a".

*Remember, $\pi$ is about 3.1416.

Solving for "a" :

a = c² ÷ 4 $\pi$

a = 28² ÷ 4 $\pi$

28² = 28 × 28 = 784

a = 784 ÷ 4 $\pi$

4 $\pi$ = 4 × $\pi$ = 12.56637061435917

a = 784 ÷ 12.56637061435917

a = 62.38873769202297cm²

You need to round to the nearest square centimeter, which means that you need to round to the nearest whole number :

a = 62cm²

There you go! I really hope this helped, if there's anything just let me know! :)

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3 years ago

Fantom [35]

Answer:

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1 year ago

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the first three terms of an arithmetic progression is (x + 1), (4 x - 2) and 6 x - 3 if the last term is 18 find the value of x

lbvjy [14]

Answer:

Step-by-step explanation:

<u>Since it is AP, the common difference is same for any term:</u>

(4x - 2) - (x + 1) = (6x - 3) - (4x - 2)
3x - 3 = 2x -1
3x - 2x = 3 - 1
x= 2

<u>The first 3 terms are:</u>

3, 6, 9

<u>Since the last term is 18, it means this AP has 6 terms:</u>

{3, 6, 9, 12, 15, 18}

<u>Answer: </u>as we need to find the value of x only, it is = 2

6 0

3 years ago

Your start-up business is looking into the energy usage in the community of south lawndale. your sample size is 12 months. use t

Aleonysh [2.5K]

The confidence interval at 95% level is

7106.87 < μ< 14255.27

<h3>What is meant be mean and standard deviation?</h3>

The ratio of sum of observations to the total number of observation is known as mean. It is one of the central tendency in the statistics. It gives an idea about the central value present in the data. The most sensitive measure of central tendency is mean. It is very easy to calculate. Mean playa a crucial role in daily life. The two types of means are Arithmetic mean and Geometric mean.

Standard deviation is a measure in the statistics. The amount of variation of a set of values is known as standard deviation. Standard deviation is denoted by σ.

As per given data

90% confident level for amount of electricity used in community of Austin is

X-tx/2(n-1)s/√n < μ < X+ tx/2(n-1)s/√n

Here , n=12 , X=10681.07 , s=6893.87

Margin of error = tx/2(n-1)s/√n

=(1.796×6893.87)/√12

=3574.1996

=3574.19(approximately)

Therefore, 90% CI is,

10681.07-3574.19 ≤ μ<10681.07+3574.19

7106.87 < μ< 14255.27

To know more about mean and standard deviation, visit:

brainly.com/question/14720855

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10 months ago